Annulus.



No. 76611125. PATENTED JULY 26, 1904. L. N. D. WILLIAMS.

ANNULUS.

APPLGATION FTLED AUG. 21, 1903.

NO MODEL. 2 SHEETS-SHEET l.

No. 766,125. PATENTED JULY 26, 41904. L. N. D. WILLIAMS.

ANNULUS.

APYLIOATION FILED AUG, 21. 1903.

2 SHBBTLSHBET 2.

N0 MODEL N0. 766,125. Patented July 26, 1904.

UNITED STATES PATENT OEEICE.

LOUIS N. D. VILLIAMS, OF OGONTZ, PENNSYLVANIA, ASSIGNOR OF ONE- HALF TO ROBERT W. SCOTT, OF PHILADELPHIA, PENNSYLVANIA.

ANNULUS.

SPECIFICATION forming part of Letters Patent No. 766,125, dated July 26, 1904.

Application filed August 21, 1903- SerialNo.170,274. (No model.)

T @u whfmf it "LU/1J @m6677111 pable of application to any one of a number 5o Be it known that I, Louis N. D. VILLIAMS, of shafts whose diameter' may vary within a a citizen of the United States, and a resident of relatively wide range, whereby the special Ogontz, Montgomery county, Pennsylvania, boring of a hub to fit a shaft of a given size have invented a certain Improved Annulus, of is rendered unnecessary and wheels or pulleys which the following is a specification. of various diameters and various widths of My present invention consists of a special face may be kept in stock without requiring' form of the annulus constituting the subject such an inordinately large number as would of my application for patent tiled July Q4, be necessary if each pulley was adapted only 1o 1903, Serial No. 166,879, the purpose of the to a shaft of a particular size.

present form of said invention being to adapt In the drawings, l represents thehub of the 60 the hub of a wheel or pulley or the sleeve of wheel or pulley, or it may represent the sleeve a couplingl for ready application to shafts of of a shaft-coupling or other form'of annulus. different diameters by interposing between For convenience, however, I will refer to itas 15 shafts of the smaller diameters and fixed a pulley-hub. On one side of the bore of bearings in the annulus shaft-supporting the hub is a threaded opening for the reception blocks seated upon said fixed bearings and of of ascrew 2, which may bear directly upon the such size as to bring the fixed bearings for shaft to which the pulley is applied, but which the shaft as much closer to the axis of the by preference bears upon a radially-sliding 2o annulus as is required by the reduced diamekey which is adapted to a key-seat formed ter of the shaft. in said shaft, this key projecting into a recess In the accompanying drawings, Figure lis inthe hub l and being of any desired length, a view, partly in end elevation and partly the screws 2 being increased in number, if in section, of the hub portion of a wheel or desired, so as to act upon the key at different 25 pulley constructed in accordance with my inpoints in its length. The bore of the hub is vention, showing the same applied to a shaft slightly greater than the diameter of the of maximum diameter. Fig. 2 isa view similargest shaft for which the wheel or pulley is lar to Fig. l, but illustrating the application intended. For instance, if said largest shaft of the pulley to a shaft of smaller diameter is two inches in diameter the bore of the hub 3o than that shown in Fig. l. Fig. 3 is a like may be about two and one-eighth inches.

view illustrating the application of the pul- In the bore of the hub on the side opposite 8O ley to a shaft of still smaller diameter. Figs. that which carries the set-screw 2. are a pair i and 5 are end views of hubs having rectanguof shaft-supporting blocks 6, which are latlar supporting-blocks in place of the cylindrierally separated to any desired extent within 3 5 cal supporting-blocks, as shown in Figs. l, 2, one-half of the circumference of the bore and and 3; and Figs. 6 and 'T are respectively an are prevented from approaching each other 85 end view and a longitudinal section illustratby any suitable n1eans#as, for instance, by ing the application of my invention to a reprojections in the bore or by an interposed cessed or chambered hub. separatori, consisting of a segmental or other 4o The purpose of the former invention was bar of the desired length, the supportingto so construct an annulus that the same blocks shown in Figs. l, 9., and 3 consisting 90 would run true with the shaft or would hold of short sections of rolled rod or other true the shaft true in its bearing even though the cylinders. bore of the annulus was larger than the diame- In preparing the hub the same may be 45 ter of the shaft, so that the annulus could be bored throughout or only trued in those parts readily placed upon or removed from the shaft; which are to form seats for the blocks 6. A and my present invention has the same genhub prepared in this way and provided with eral object .and in addition thereto the spesupporting-blocks of any desired diameter cial object of providing wheels or pulleys cacan be secured upon a mandrel, and the face wise trued and the ends of the hub faced, if

necessary, so that when the hub is applied to` a shaft the pulley will run with equal truth 'thereon whether said shaft is of the same or of lesser or greater diameter than the mandrel, the diameter of the blocks 6 being regulated to accord with the diameter of the shaft and the latter being in all cases supported in a position concentric with the rim of the wheel or pulley.

As the shaft-supporting blocks always have their bearing upon a surface concentric with the axis of the pulley and as the distance of this surface from the periphery of the shaft of maximum diameter is known, no calculation will be required to determine the proper diameter of blocks required in any particular case. For instance, if the periphery of the shaft of maximum diameter is one-eighth of an inch from the support for the blocks a reduction in the diameter of the shaft to the extent of one-half inch would necessitate the use of shaft-supporting blocks three-eighths of an inch in diameter, and so on.

The key 5 may be of suiicient width to accommodate the different sizes of shafts as shown, or a special width of key may be employed in connection with each shaft.

Supposing that the hub has immovable and separated seats whose bases are at a fixed distance from the axis of the hub, various forms of shaft-supporting blocks other than the cylindrical blocks shown in Figs. l, 2, and 3 may be used. For instance, in Fig. 4: I have shown a hub 1 with V-shaped recesses therein, to which are adapted blocks 6, square in cross-section, the inner corners of which blocks serve as supports for the shaft, the blocks being increased in size, as shown by dotted lines, as the shafts decrease in diameter, and in Fig. 5 I have shown a hub 1b with rectangular recesses therein for the reception of rectangular blocks 6b, decrease in diameter of the shaft in this case being compensated for by an increase in the width of the blocks.

In that embodiment of my invention shown in Figs. 6 and 7 the hub 1c has anged ends in which are recesses for the reception of the journals 6c of rollers 6d, which serve as the supports for the shaft, the diameter of the bodies of the rollers being such as required by the diameter of the shaft, but the diameters of the journals being always the same, so that the recessed anges of the hub provide unchanging seats thereforf As this construction would, however, impose excessive strain upon the journals of the rollers, the other embodiments of my invention are preferred.

In all cases the two immovable and separated points of contact for the shaft should be disposed Within one-half of the circumference of said shaft, so that when pressure is applied to the other side-of the shaft such pressure will cause the shaft to properly seat itself upon said immovable and separated bearings.

Having thus described my invention, I claim and desire to secure by Letters Patentl. An annulus for shafts having a bore of sufiiciently greater diameter than the shaft to which it is to be applied to permit the annulus to be readily slipped over the shaft, and having, within less than one-half of the circumference of its bore, two immovable and separated seats,shaftsupporting blocks interposed between said seats and the shaft, and adjustable means on the opposite side of the bore for imparting pressure to the shaft, so as to cause the latter to seat itself upon said supporting-blocks, substantially as specified.

2. An annulus for shafts having a bore of sufficiently greater diameter than the shaft to which it is to be applied to permit the annulus to be readily slipped over the shaft, and having within less than one-half of the circumference of its bore, two immovable and separated seats, shaft-supporting blocks interposed between said seats and the shaft, means for maintaining the proper separation of said blocks, and adjustable means on the opposite side of the bore for imparting pressure to the shaft, so as to cause the latter to seat itself upon said supporting-blocks, substantially as speciiied.

3. An annulus for shafts having a bore of suiiiciently greater diameter than the shaft to which it is to be applied to permit the annulus to be readily slipped over the shaft, and having, within less than one-half of the circumference of its bore, two immovable and separated seats consisting of recesses adapted for the reception of blocks which will provide seats for a shaft of smaller diameter than the maximum, and adjustable means on the opposite side of the bore for imparting pressure to the shaft, so as to cause the latter to seat itself upon such blocks, substantially as specified.

4. An annulus for shafts having a bore of sufficiently greater diameter than the shaft to which it is to be applied to permit the annulus to be readily slipped over the shaft, and having within less than one-half of the circumference of its bore, two immovable and separated seats concentric with the axis of the annulus, shaftsupporting blocks interposed between said seats and the shaft, and adjustable means on the opposite side of the bore for imparting pressure to the shaft so as to cause the latter to seat itself upon said supporting-blocks, substantially as specified.v

5. An annulus for shafts having a bore of sufhciently greater diameter than the shaft to which it is to be applied to permit the annulus to be readily slipped over the shaft,and having, within less than one-half of the circumference of its bore, two immovable and separated seats concentric with the axis of the annulus, shaftsupporting blocks interposed between said seats and the shaft, means for maintaining the IOO IIO

IZO

proper separation of said blocks, and adjustable means on the opposite side of the bore for imparting pressure to the shaft so as to cause the latter to seat itself upon said supportingblocks, substantially as specitied.

6. An annulus for shafts having, a bore of sufliciently greater diameter than the shaft to which it is to be applied to permit the annulus to be readily slipped over the shaft, and having, within less than one-half of the circumference of its bore, two immovable and separated seats for the shaft, and on the opposite side of the said bore, a radially-adjustable key adapted to a key-seat in the shaft, and means for imparting pressure to said key so as to cause the shaft to bear upon said fixed and separated seats, substantially as specified.

7. An annulus for shafts having' a bore of sufliciently greater diameter than the shaft to which it is to be applied to permit the annulus to be readily slipped over the shaft,and having, within less than one-half of the circumference of its bore, two immovable and separated seats consisting of recesses adapted for the reception of blocks to be interposed between the shaft and the annulus, and having, on the opposite side of the bore, a radially-adjustable key adapted to a key-seat in the shaft, and adjustable means for imparting pressure to said key whereby it causes the shaft to bear upon the said blocks irrespective of the diameter of the shaft, substantially as specified.

In testimony whereof I have signed my name to this specification in the presence of two subf scribing witnesses.

LoUIs N. D. WILLIAMS.

Vitnesses:

F. E. BEoH'roLD, Jos. H. KLEIN. 

